Since finally finding an acceptable way to play since this update (....), I've noticed two things:
1. Game performance was a bit choppier than normal. Could be due to .dat file fragmentation, but this was the first and only updated installed since a fresh installation.. so not likely (unless the .dat filesystem fragmentation can get THAT bad after just one update. This was a pretty large one, though, so I suppose maybe it's possible.). Not exactly sure why, unless engine changes were made and I missed it in the notes.
2. Monk-specific visual bug: when using Shadow Veil, rather than my Monk just fading in to transparency a bit, it would disappear completely. I found that I had to have multi-pass lighting entirely disabled for this to stop. This obviously wasn't the case before the update.
So far I've not seen anyone else mention the Shadow Veil bug. It's not game-breaking, and only seems to happen (for me) with multi-pass lighting enabled. Kind of a shame, too, because those lighting effects were pretty nice to have. But regardless, I thought I'd just report that and see what folks here had to say. In-game chat isn't too lively this day on my server it seems. Oh well. :P